Bicycles for velodromes have no
brakes. They employ a single fixed rear gear, or cog, that does not freewheel.
This helps maximize speed, reduces weight, and avoids sudden braking while
nevertheless allowing the rider to slow by pushing back against the pedals.
Modern velodromes are constructed
by specialized designers. The Schuermann architects in Germany have built more
than 125 tracks worldwide. Most of Schuermann's outdoor tracks are made of wood
truss work with a surface of strips of the rare rain-forest wood Afzelia.
Indoor velodromes are built with less expensive pine surfaces. Other designers
have been moving away from traditional materials. The 1996 Atlanta Olympics saw
the introduction of synthetic surfaces supported by steel frames.
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